Machine for grinding cards.



No. 662,742. Patented Nov. 27, I900.

B.S. ROY.

MACHINE FOR GRINDING CARDS.

(Application filed Feb. 5, 1900.)

(No Model.)

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MACHINE FOR GRINDING CARDS.

SPECIFICATION forming part of Letters Patent No. 662,7d2, dated November 27, 1900..

v Application filed February 5,1900. serial No- 3,927. LNo model.)

To all 1117110712, it new/concern:

Be it known that I, BOZIL S. ROY, a citizen of the United States, residing at Worcester, in the county of Worcester and Commonwealth of Massachusetts, have invented a new and usefullmprovementin Machines for Grinding Oards,of which the followingis a specification, accompanied by drawings forming a part of the same, in which Figure 1 represents that portion of a cardgrinding machine necessary to illustrate the nature and scope of my present invention and consisting of a hollow rotating shaft, with a traversing grinding-wheel carried thereon and shown in central sectional view in order to disclose the mechanism by which the grinding-wheel is traversed along the hollow shaft. Fig. 2 represents, on an enlarged scale, the intermediate differential gearing by which the traversing mechanism Within the hollow shaft is operatively connected with the rotating shaft which carries the grinding-wheel; and Fig. 3 is a side elevation of one of the journal-boxes by which the hollow rotating shaft.

shown in Fig. l is supported.

Similar reference-figures refer to similar parts in the different views.

My invention relates to that class of machines for grinding the teeth of card-clothing which comprises a hollow rotating shaft, with a grinding-wheel carried thereon and having a traversing motion lengthwise the shaft by means of a traversing mechanism contained within the hollow shaft; and it relates partic ularly to the mechanism by which the traversing mechanism is operatively connected with the hollow shaft which carries the grindingwheel; and it consists in the novel features of construction, as hereinafter described, and pointed out in the annexed claims.

Referring to the drawings, 1 denotes a hollow shaft provided at each end with gudgeons 2 and 3, journaled in boxes 4 4, which are supported in frames 5 5, having vertical ways 6, upon which the boxes are adjustable by means of screws 7 7. The frames 5 5 are horizontally adjustable along ways 8 by means of a screw 9, Fig. 3, thereby allowing each end of the hollow shaft 1 to be adjusted both vertically and horizontally in order to bring case 21 from rotating on the gndgeon.

its axis into proper position relatively to the surface of the card-clothing to be ground.

The hollow shaft 1 carries a grinding-wheel 10, having a traversing motion along the shaft 1 by means of a slotted key 11, attached to the hub of the grinding-wheel and entering a slot 12 in the shaft 2, with the slot 13 of the key engaged by a stud 1 1, which is carried upon an endless chain 15, driven by a sprocket 16 through intermediate beveled gearing 17 and 18 by a spindle 19, which is journaled concentrically in the gudgeon 3. The end of the gudgeon 3 rotates in a plate 20, which forms one side of a case 21. The plate 20 carries a stud 22, on which is journaled a gear 23, engaged by a pinion 24, attached to the end of the gudgeon 3. Attached to the hub 25 of a gear 23 is a pinion 26, which engages a gear 27, attached to the end of the spindle l9 and constituting a system of differential gearing, so that the rotation of the gudgeon 3 will be communicated to the spindle 19 with a decrease'in speed. The plate 20 is provided with a projecting spur 28, which enters a slot 2!) in an arm 30, depending from the lower half of the journalbox l of the gudgeon 3, in order to hold the As the arm 30 is carried by the journal-box the slot 29 is raised and lowered or moved horizontally with the adjustment of the shaft 1, thereby keeping the slotted arm 30 in the same relative position to the case 21 and maintaining the differential gearing in operative position, notwithstanding the vertical and horizontal adjustment of the journalboxes, in order to vary the position of the hollow shaft for the purpose of properly presenting the teeth of the card-clothing to the action of the grinding-wheel.

, WVhat I claim as my invention, and desire to secure by Letters Patent, is-- 1. In a machine for grinding card-clothing the combination of a hollow shaft journaled in boxes, means for the vertical and horizontal adjustment of said boxes, a spindle journaled in one of the gudgeons of said hollow shaft, differential gearing operatively connecting said spindle and said gudgeon, a plate supporting said differential gearing and an arm projecting from the journal-box of tween said spindle and said gudgeon, a case said gudgeon and engaging said plate, whereby said differential gearing is held in operative position as the journal-boxes are adj nsted, substantially as described.

2. In a machine for grinding cards the combination of a hollow shaft, a grinding-Wheel carried by said shaft and a traversing mechanism contained in said hollow shaft and operatively connected with said grinding-wheel, a spindle journaled in one of the gudgeons of said hollow shaft, intermediate gearing behung upon said gudgeon and inclosing said gearing, a spur projecting from said case, a 15 slotted arm attached to the journal-box of said gudgeon and engaging said spur and means for the adjustment of said journal-box, substantially as described.

BOZIL s. ROY.

Witnesses:

RUFUS B. FOWLER, AVA T. MURPHY. 

